architecture ebook outstanding wood buildings - cwc
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C A S E S T U D I E S O F
Outstanding
Wood
Buildings
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Introduction
Proud, confident and imaginative. This series of Case Studies demonstrates how Canadian building
designers are finding exciting uses for Canadas oldest, yet newest building material world-renowned
quality wood products that can meet all the challenges of modern building science. The Wood WORKS!
Program was conceived to show the world how to create amazing living and working environments with
building materials that are renewable and have a low environmental price tag.
Supported by industry and government, Wood WORKS!, a Canadian Wood Council initiative, is more than
a resource for wood construction, engineered wood products and building systems. It is an affirmation of
Canadas world leadership in the management of forest resources, the manufacture of quality products,
and the design and construction of buildings with these materials. Wood WORKS! is dedicated to your
success in building with wood, developing your expertise and celebrating your pride.
Since its launch, the Wood WORKS! Team has helped several high profile projects meet or exceed build-
ing code and owners requirements, while offering the best value compared to other building systems.
The following projects showcase woods potential in construction:
1 West Vancouver Aquatic Centre(West Vancouver, British Columbia) .............................................................. 4
2
Hinton Government Centre
(Hinton, Alberta) ........................................................................................ 7
3 Charles W. Stockey Centre for the Performing Arts /Bobby Orr Hall of Fame (Parry Sound, Ontario) .......................................... 114 Rutland Elementary School(Kelowna, British Columbia)....................................................................... 145 St-Prime Golf Clubhouse(St-Prime, Quebec) .................................................................................. 176 Intuit Canada Headquarters(Edmonton, Alberta).................................................................................. 20
7
Vancouver Island Regional Library, Courtenay Branch
(Courtenay, British Columbia) .................................................................... 23
8 Thunder Bay Regional Health Sciences Centre(Thunder Bay, Ontario).............................................................................. 25
Wood WORKS! is managed and supported by the Canadian wood industry through the Canadian Wood
Council, its member associations, several companies and various levels of government (federal and
provincial) including Natural Resources Canada.
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The West Vancouver Aquatic Centre has pro-vided aquatic recreation opportunities forthe past 25 years. After years of heavy use,
the facility was in need of a major overhaul to
bring it up to current aquatic standards, and to
add new features. This project combines the
refurbishment of an original 25-year-old
aquatic facility with the addition of a new
leisure pool, accessible hot pool, 20 m (65 ft)
water slide, family change rooms, multi-purposeroom, fitness areas, and public viewing areas
(Figure 1).
Although the shell of the original aquatic
centre was retained, the renovation was very
extensive and the new facility covers almost
two times the area of the original. Completed
in January 2004, in the two-storey, 3,050 m2
(33,000 ft2), $7.5 million, a major attracting
feature of the West Vancouver Aquatic Centre
is the extensive use of wood.
Architectural Considerations
The original aquatic centre was constructed in
1974 and consisted of concrete and masonry walls
supporting a glulam arch roof. The facility had very
little natural light and no natural ventilation.
The design team reconfigured the existing flank of
change rooms for better use and added a fitness
area. The expressive volume of the new pools
springs from a re-interpretation of the existing
building geometry, structural systems, and site
constraints. In contrast to the existing pool vol-
ume, the new shell volume presents an open
expression to the adjacent civic spaces, as well as
to the pedestrian and vehicular energy of Marine
Drive (Figure 2). Generous mountain views exist to
the north of the site while panoramic views of
Burrard Inlet grace the upper levels.
4 C A S E S T U D I E S O F Outstanding Wood Buildings
West Vancouver Aquatic Centre
New Life for an Old Building
1.
Figure 1Plan view of refurbished pool and facilities (left) and
new leisure pool and related amenities (right)
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Structural Wood System
Using as its starting point the structural grid and
system of the original building, the design utilizes
a palate of durable materials including reinforced
concrete, concrete masonry, glass (curtain wall),
and wood. The structure of the new pool space is
primarily glulam beams and purlins.
Roof Design The structure features glue-
laminated arches and columns in the pool spaces
supporting a metal roof on a metal deck. The
glulam beams provide versatility and up to 30 m
(100 ft) clear span. The wish-bone supporting
columns (Figure 3) contrast typical aqua colours
and create a strong first impression when people
enter the facility.
Wall Design Retaining the shell of the origi-
nal building, the walls are a combination of load
bearing masonry, glass curtain wall, and metal
cladding set on a cast-in place concrete floor
system. In the addition, glulam columns supportan innovative curtain wall system in the exterior
faade (Figure 4). The innovative structure of the
eastern wall of the new pool space uses a glulam
glazing system that accommodates glazed over-
head doors and a series of electrically-operable
solar shading devices.
Environmental Features
Site Conservation The original building
has been recycled into the expanded facility
extending its lifespan and making it relevant to
the recreation needs of todays community. The
additions to the facility have been designed to
have minimal impact on the mature existing trees
on the north and west sides of the facility.
C A S E S T U D I E S O F Outstanding Wood Buildings 5
Figure 2Rendering of faade for
the new leisure pool
Figure 3Curved glulam columns in
the new leisure pool
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Energy Conservation In addition to
energy and water efficient systems, the design
makes extensive use of natural light and natural
ventilation. The pool water is heated using
a combination of recovered heat from the
de-humidifiers and geothermal heat sources
below the civic lawn. Waste heat from the adja-
cent ice arena refrigeration plant is also utilized.
The east wall of the new pool spaces utilizes a
series of electrically-operated solar shades withina deep egg-crate glulam structure to provide
an effective balance between solar control
and natural light.
Indoor Air Quality Through the use of
electrically-operable glazed overhead doors and
mechanically operable vents, the facility can
be naturally ventilated. Raising the doors also
provides access to a public outdoor space over-
looking the civic lawn. The natural ventilation
significantly improves the indoor air quality,
providing the ambiance of an outdoor pool.Materials Materials selected are suitable for
the demanding atmosphere of an aquatic centre.
In a pool or arena where humidity is a factor,
wood helps to mitigate the problem. Steel tends
to corrode and water drops are created. Wood
is able to tolerate the high humidity levels.
Acoustically, wood absorbs sound so the
building is not as noisy as a complete steel or
concrete structure.
Fire Safety RequirementsThe West Vancouver Aquatic Centre is sprinkler-
protected. A building of this size is required to be
of noncombustible construction. However, with
the building sprinklered, the roof assembly and
its supports are permitted to be heavy timber
construction. As such, the glulam beams and
supporting columns were left exposed, and no
additional fire protection was required.
Conclusion
This project has added many more years of enjoy-
ment for the users of the West Vancouver Aquatic
Centre. Upgrading of the original pool area and
the addition of new facilities makes it suitable
to a wider range of ages, abilities and interests.
Wood construction plays a major role in the mod-
ernization and humanization of the new facility,
and reflects the forestry heritage for which British
Columbia is world-renowned.
Project Credits
ARCHITECTS:
Hughes Condon Marler: Architects
STRUCTURAL ENGINEERS:
Fast + Epp Structural Engineers
GLULAM FABRICATOR:
Western Archrib
GENERAL CONTRACTORS:
DGS Construction Company Ltd.PHOTO CREDITS:
Martin Tessler, and Hughes Condon Marler:
Architects
6 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 4Night view intothe new pool
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When its town hall burned down in 1998,the Town of Hinton sought a buildingdesign that would demonstrate environmental
consciousness and be a functional landmark
attraction. The resulting Hinton Government
Centre, a 3,000 m2 (32,000 ft2), three-storey
office building was completed in 2000, provid-
ing facilities for the municipal government and
office space leased to the Province of Alberta.
Situated west of Edmonton on the eastern
edge of Jasper National Park, the Town of
Hinton is home to a population of almost
10,000. The forest industry, a pulp mill and a
sawmill, is the foundation of the Hinton econ-
omy. The result of community involvement
that has fostered increased pride and respon-
sibility in the project, the new Government
Centre is a proud display of some of the
products made in Hinton and distributed
around the world. About the building
Located on the corner of Switzer Drive and RobbRoad, the site is an irregularly shaped 6.5 ha
(16 acres) parcel of land on the main road
connecting the two historical centres of Hinton,
known to residents as the Hill and the Valley. The
building, designed according to the sloping land-
scape (Figures 5and 6), is accessed by means of
an elevated wooden walkway (Figure 7). Visitors
enter into a two-storey lobby space featuring
peeled log columns and a full height window wall
looking towards the distant Canadian Rockies and
the slopes of the Athabasca River Valley.
At the south end of the site, the building is two
stories in height, with Municipal Government on
the main floor and Alberta Government offices on
the upper floor. The north end of the building is
three stories high and there is direct grade level
access to the lowest level, as well as bridge
access to the Municipal Government, Council
Chamber, and offices located off the public
atrium space on the second level.
C A S E S T U D I E S O F Outstanding Wood Buildings 7
Hinton Government Centre
Sustainable by Design
2.
Figure 5Artists rendering of
north elevation
Figure 6Site plan
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Architectural Considerations
The selection of materials took into consideration
resource conservation, the reduction of embodied
energy, and the use of renewable resources with
maximum benefit to the local timber economy.
As well, the warmth and character that wood
provides was essential to the desired building
character.
The building utilizes materials that are durable,
easy to maintain, and sustainable. The exterior
and structure are made primarily of wood with
stone, glass, masonry, and pre-finished metal,
using simple and readily available materials,
systems, and construction methods. The interior
finishes utilize wood for certain key elements
to create a sense of warmth and to reflect
Hintons character.
Structural Wood System
Wood construction was chosen for three reasons.
1 It was the most economical building solution.
2 It provided the greatest flexibility for change
during construction.
3 It allowed the contractor to utilize local labor
and materials.
Structural Frame The exposed structure
of the Hinton Government Centre is comprised of
steel columns and peeled-log columns supporting
glulam beams. Loadbearing wood stud walls are
used at the building perimeter and for interior
fixed partition walls. In addition to supporting
the roof and floor loads, these walls are also
structurally important in resisting lateral loads
and act as shearwalls.
The floors are comprised of two layers of OSB /
plywood sheathing installed over wood I-joists or
open-web wood joists. Office spaces are designed
using raised floors to provide easy routing of
cables and ventilation.
Exterior Pre-finished wood siding systems
were used extensively as an exterior finish for the
project. The exterior sidings acrylic latex paint
has an extended wear guarantee that contributes
to the need for a low maintenance exterior. The
exposed wood structure (Figure 8), the interpretive
shelter, the exterior wood deck, and the entrancebridge are coated with a water repellent stain.
Interior Most of the interior walls have a
painted gypsum board finish. The ceilings are a
combination of t-bar grid ceilings and tight-knot
pine in the atrium and Council Chamber. Wherever
possible, wood surfaces and structure were
stained and left exposed (Figure 9). Architectural
millwork includes wood and wood veneers, and all
interior doors are solid wood core (birch veneer
with a clear finish). The Council Chamber makes
extensive use of wood as a finish material, includ-ing exposed arched glulam beams (Figure 10) and
a feature wood wall consisting of birch plywood in
a metal framing system.
8 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 7Main entry bridge
Figure 8Exterior, north side
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Fire Safety Requirements
The Hinton Government Centre is a Group D officeoccupancy. This occupancy is permitted to be
wood-frame construction and/or heavy timber
construction for the planned building area and
height. The floor assemblies and loadbearing walls
are required to have a fire resistance rating not
less than 45 minutes. In compliance with the
Alberta Building Code, all floor areas are sprin-
klered. Exterior sprinklers were required and
included in the design of the entry canopy, and
other areas with large overhangs, because of the
use of a combustible structure for the deck, the
entrance bridge, and overhangs greater than2.4 m (4 ft).
Thermal Performance
A wall system with an effective R-value of R-20
and roof system with an R-value of R-30 offsets
the demand for winter heating. The wood-frame
construction used throughout the building was
easily and cost-efficiently insulated to provide
the needed effective R-value within the building
envelope. The high thermal performance of the
building envelope means that perimeter make-up
heating is not required.
To optimize thermal performance, the walls and
roof are sealed with a continuous torched on
air/vapour barrier. The insulation is on the cold
side of the membrane to prevent condensation
within the wall space. Low-e window glazing
was chosen to maximize natural lighting while
reducing summer heat gain and reducing winter
night-time radiation loss. Operable windows
provide localized ventilation, improve staff comfort
and reduce cooling energy expenditures during
the spring, summer, and fall.
The building orientation was adjusted to face the
north and northwest. A daylight analysis was used
to optimize the amount of comfortable daylight on
the west and north faces of the building to avoid
solar heating and the glare impact of the low
summer sun exposure from the west. The designis elongated to maximize daylighting, yet compact
(with a length to width ratio of 2.85 to 1) to
maximize envelope heat transfer performance.
Sustainable Design
With sustainability and environmental issues in
mind, the building and site have been designed
to meet or surpass the Commercial Building
C A S E S T U D I E S O F Outstanding Wood Buildings 9
Figure 9Main lobby atrium
Figure 10Town of Hinton Council Chamber
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Incentive Program (CBIP) and CANMET C-2000
requirements. Throughout the design process, the
use of energy modelling and building simulation
allowed performance to be checked on all aspects
of the building: lighting and daylighting, shape
and orientation, heating, ventilation and air
conditioning, as well as the building envelope.
The final design is an integration of sustainable
technologies that are specific to the program, site,
and needs of the client.
The Hinton Government Centre combines a variety
of passive and active approaches to sustainable
design, for example, low-impact site strategy,
material selection, and sophisticated electronic
environmental controls. As a result, the building
reduces greenhouse gas emissions by more than
50% compared to a conventional building through
the reduction of operational energy and the use
of low embodied energy materials. Its energy
consumption level is more than 50% less than
what is required by the Model National EnergyCode for Buildings(MNECB). These energy
savings are projected to be in excess of $30,000
per year in operating costs, which offsets the cost
of capital project funding.
Conclusion
The Hinton Government Centre is an energy
efficient and sustainable building that acts as a
bridge between hill and valley, industry and envi-
ronment, past and future. The construction of a
wood building provides the desired qualities of
warm appearance, economy of means, reduced
environmental impacts, and maximum benefit to
the local forest product-based economy. The
sustainable design strategies used in this projectrepresent the strong environmental stewardship
practiced by the Town of Hinton. Most importantly,
the building and site is a place serving and
belonging to the residents of Hinton.
Project Credits
ARCHITECTS:
Manasc Isaac Architects Ltd.
STRUCTURAL ENGINEERS:
Duthie, Newby, Weber & Associates Inc.
GENERAL CONTRACTORS:
Graham Construction & Engineering Ltd.
PHOTO CREDITS:
Jim Dow
1 0 C A S E S T U D I E S O F Outstanding Wood Buildings
Commercial Building Incentive Program
Natural Resources CanadasCommercial Building Incentive Program (CBIP) offers a financial
incentive for the incorporation of energy efficiency features in new commercial/institutional
building designs. The objective of the program is to encourage energy-efficient design practices
and to bring about lasting changes in the Canadian building design and construction industry.A financial incentive of up to $60,000 is available to building owners whose designs meet CBIP
requirements. The program requirements are based on two documents: theModel National
Energy Code for Buildings andCBIP Technical Guide. An eligible building design must demon-
strate a reduction in energy use by at least 25% when compared to the requirements of the
MNECB. The program began in 1998 and ends March 31, 2007. For more information on CBIP,
visithttp://oee.nrcan.gc.ca/newbuildings/cbip.cfm .
Source: CBIP, Natural Resources Canada
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Its picturesque Georgian Bay frontage,its outstanding international summer musicfestival the Festival of the Sound and its native
hockey legend Bobby Orr are three distin-
guishing features of Parry Sound. A partnership
representing these three features commissioned
construction of the Charles W. Stockey Centre for
the Performing Arts and the Bobby Orr Hall of
Fame (Figure 11) in the heart of Parry Sounds
waterfront district.
With strong community support and the tire-
less efforts of numerous Parry Sound and area
citizens, the Festival of the Sound now has a
breathtaking new edifice in the Charles W.
Stockey Centre. More than 40 partners were
drawn together for this project, including all
area municipalities, the provincial and federal
governments, and the private sector.
About the building
The world-class Charles W. Stockey Centre for the
Performing Arts sits on a 1.5 ha (3.5 acres) site.
Construction began in the spring of 2002 and
the official opening took place in July 2003. The
$12.4 million, 2,500 m2 (27,000 ft2) Stockey
Centre houses a 480-seat acoustically sound
Performance Hall to serve as the new home of the
world-renowned chamber music festival, an inter-
active sports hall of fame, and a hockey museum
celebrating many Northern Ontario sports heroes.
Part of the Centre is the hockey museum, featuring
Bobby Orr, a native of Parry Sound. The Orrs have
handed over a large assortment of memorabilia for
display in the new facility. The Bobby Orr Hall of
Fame also celebrates the achievements of these
athletes using the latest, interactive technologies.
Architectural Considerations
A common lobby is shared between the Centre for
Performing Arts and the Bobby Orr Hall of Fame
entertainment centre. The complex also incorpo-
rates two reception rooms, and a waterside
outdoor performance deck. The main theatre,
whose prime function is the performance of
chamber music, can be configured for raked
seating or flat floor for receptions and confer-
ences. A large Bay-side deck further extends
the buildings connection with the water allowingboaters to view performances.
To reflect the unique natural beauty of the area,
the building was designed to have the appearance
and atmosphere of a Georgian Bay cottage. The
use of the areas natural stone and indigenous
C A S E S T U D I E S O F Outstanding Wood Buildings 1 1
Charles W. Stockey Centre
for the Performing Arts /Bobby Orr Hall of FameSound Performance Takes
Center Stage
3.
Figure 11Main entrance
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trees, pine beams and granite from the local
quarry add a special intimacy to the interior of
the concert hall (Figure 12).
Structural Wood System
The building features heavy timber framing. Heavy
timber trusses and wood decking are an essential
acoustical requirement they provide both the
slightly textured surfaces for good sound reflec-
tion, and a visually warm appearance muchfavoured by musicians and audiences. For the
same reasons, special acoustical reflectors and
suspended ceilings were also made of wood.
The Auditorium
In addition to the aesthetic and acoustical advan-
tages of using wood in this project, the wood
decking was also the most economical choice
of material for the auditorium roof in terms of
structural functionality (Figure 13). The glulam
trusses form the structural skeleton of the50 degree sloped pitch roof. An 89 mm (3-1/2 in)
tongue and groove timber deck was the most
suitable choice for spanning the 3 m (10 ft)
between the glulam scissor trusses. The heavy
timber decking also acts as a diaphragm, provid-
ing additional stiffness to the roof framing system.
The exposed trusses spanning between the
auditorium side walls provide a 19 m (62 ft) high
ceiling for the auditorium. The timber trusses not
only provide support for the auditorium roof, but
also for the two levels of balconies (Figure 14)
and the catwalks, which are suspended from
two points along the roof trusses using glulam
timber hangers.
The auditorium floor is made of maple strip floor-
ing supported by a plywood / joist subfloor, on
rubber pads, similar to a regular gymnasium floor.
1 2 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 12Stage andground floor seating
Figure 13Auditoriumroof structure
Figure 14Raised and suspendedauditorium seating
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The Lobby
The wood theme carries from the auditorium into
the lobby where wood columns and beams create
a unique example of combining and integrating
architecture and structure. The lobby structure
consists of two glulam towers that act as three-
dimensional space frames to stabilize the lobby
and the front gallery. Each tower consists of four
built-up glulam columns linked by four 950 mm
(38 in) deep glulam beams supporting the roof,the lobby floors below, and the walkways giving
access to the upper levels of the auditorium
(Figure 15).
The wood framing and decking also extends into
the reception rooms, parts of the Hall of Fame and
outside the building enclosure to form overhangs
and entrance canopies to create a warm inviting
presence for the building in its waterside setting.
Fire Safety Requirements
The Stockey Centre is fully sprinklered, arequirement regardless of construction type for
an assembly building of this size (NBCC / OBC
Group A-2). All combustible floor assemblies and
the loadbearing walls, columns, and beams sup-
porting them are designed to provide a minimum
fire resistance rating of 45 minutes. The wood
was sized to conform to the heavy timber con-
struction section of the Ontario Building Code,
which meant that it could be left exposed with no
additional fire protection. Since the building is fully
sprinklered and the sprinkler system is electrically
supervised, no minimum fire ratings were required
for the roof system.
Acoustic Design
Priority at every stage of the design process was
given to the special acoustical needs of the
Festival of the Sound. The acoustics in the
Stockey Centre were enhanced by the use of
wood decking in the ceilings, soffits, and reflector
devices. The wood was treated with a subtly stri-
ated finish. In combination with the rough stone
walls, the wood diffuses and directs reflected
sounds to the audience seating areas. The heavy
timber truss members also diffuse sound in the
upper part of the room before reflecting it down
to the audience.
Conclusion
Structural wood systems give the Charles W. Stockey
Centre unique aesthetic appeal and acoustical per-
formance at a cost comparable to the other building
systems investigated.This wood building brings both
music enthusiasts and hockey fans under the same
roof in Parry Sound on the shores of Georgian Bay.
Project Credits
ARCHITECTS:
Keith Loffler Architect + ZAS
(Zawadzki Armin Stevens) Architects
STRUCTURAL ENGINEERS:
Carruthers & Wallace Ltd.
ACOUSTICAL ENGINEERS:
Artec Consultants Inc.
CONSTRUCTION MANAGERS:
EllisDon Limited
PHOTO CREDITS:
Andre Beneteau
C A S E S T U D I E S O F Outstanding Wood Buildings 1 3
Figure 15Lobby and glulam-supported walkways
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The building configuration and the selectionof materials for the Rutland ElementarySchool in the Central Okanagan (Figure 16)
area of British Columbia was determined by an
extensive design and value analysis process
focused on economy, efficiency, durability, and
sustainability. The 3,000m2 (32,500 ft2) school
(Figure 17) employs several design innova-
tions to address evolving needs and priorities
in both the teaching environment and long-term maintenance. Building systems were
selected for each individual element based on
appearance, durability, cost and sustainability.
The building responds well to the provincial
sustainability guidelines.
1 4 C A S E S T U D I E S O F Outstanding Wood Buildings
Rutland Elementary School
A Sustainable Approach to School Design
4.
Figure 16Main entrance and
classroom wings of the school
Figure 17Ground floor plan
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About the building
Completed in time for the 2003-2004 school
year, the 350-student school has 16 classrooms
(Figure 18), a multi-purpose room, a media
technology centre, and a gymnasium (Figure 19).
Natural day lighting and visual inter-connection
of spaces encourages a sense of lightness
and community. The building plan anticipatesfuture growth by providing for addition of up to
twelve classrooms without significant additional
infrastructure.
Structural Wood System
Like most parts of British Columbia, the Okanagan
area is a manufacturer of quality wood products
and familiar with the economic, aesthetic, and
life-cycle advantages of wood construction. The
Rutland school makes extensive use of wood, both
as a structural material and for cabinetry andfinishing details throughout.
The ground floor walls are urethane-insulated
masonry bearing walls, while the upper floor walls
are primarily wood frame. The roof structure
uses long-span structural insulated panels
(SIPs) supported by wood beams and trusses
(Figure 20). The use of sloped roof forms
provides larger interior volumes within upper
floor classrooms and results in a reduced
two-storey mass to compliment the adjacent
residential neighourhood.
The SIPs consist of 150 mm (6 in) EPS insulation
reinforced and glued to OSB sheets top and
bottom. In many places, the SIP panels receive
roof shingles directly, and act as the interior
finish material.
Fire Safety Requirements
The building is sprinklered, a basic requirement
regardless of construction type for a school of this
size. Based on the occupancy requirements and
the size of the building, the construction type and
fire rating of the structural assemblies is governed
as a Group A, Division 2 building. However, given
that the school is fully sprinklered and the sprin-
kler system is electrically supervised, no minimum
fire ratings were required for the roof system.When the roof assembly does not require a rating,
the supports for the roof are also exempt. This
results in greater design flexibility for combustible
wood construction.
C A S E S T U D I E S O F Outstanding Wood Buildings 1 5
Figure 18Typical classroom (before furnishing) showing
roof structure and views to the exterior
Figure 19The small gym combines block
walls and a wood roof
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Sustainable Design
Rutland Elementary is the result of a conscious
effort to reduce the environmental footprint of
the building. A partial list of the measures
used includes:
Compact two-storey plan minimizes site
impact (on a small site) and conserves
energy;
Ground source heating and cooling uses over
50% less energy than conventional systems.
Rutland is the first school in the region to
use a ground source heat pump for heating
and cooling;
Concrete containing fly ash lowers
CO2 emissions;
Locally produced masonry block used
for the ground floor walls minimizes
transportation energy;
Local wood products and engineered wood
structures are used on the second floor, in
cabinetry and in finishing details throughout;
Use of structural insulated panels on upper
level walls and roof minimizes the use of
materials and maximizes the insulation value;
Low e and tinted glazing control HVAC loads
and reduce required equipment size;
Roof and storm runoff is recharged to the
ground water;
Landscape materials appropriate to the local
climate minimize water and maintenance;
Materials and finishes are selected for low
VOC content; and
HVAC and lighting systems are computer
controlled for maximum efficiency.
Conclusion
The Rutland Elementary School employs many
innovations designed to provide a quality
educational environment while minimizing the
environmental effects of the buildings con-
struction, operation, and maintenance.
Project Credits
ARCHITECTS:
Maltby & Hill Architects Inc.
STRUCTURAL ENGINEERS:
MSS Engineering Ltd.QUANTITY SURVEYORS:
Spiegel Skillen & Associates Ltd.
MECHANICAL ENGINEERS:
Stantec Consulting Ltd.
ELECTRICAL ENGINEERS:
Falcon Engineering Ltd.
GENERAL CONTRACTORS:
Sawchuk Developments Ltd.
PHOTO CREDITS:
C. Michael Hill MAIBC, Pacific Edge Architecture Inc.
1 6 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 20View of the glulam-tied roof,
lighting and ventilation
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Nestled on a tract of land in the smallmunicipality of St-Prime on the shores ofmajestic Lac St-Jean, the St-Prime golf course
boasts a challenging 18-hole golf course for
both local and visiting golf enthusiasts. The
project designers wished to use products that
reflected the regional economy reliance on
forest product and aluminum manufacturing.
Built to provide expanded services, the new
clubhouse (Figure 21) is a true showcase forwood construction, both inside and out.
Construction began in September, at the end
of the 2002 golf season. Ready access to
dimensional lumber, structural wood panels,
and engineered wood products ensured the
project was completed within a tight schedule
to allow for timely occupancy that took place
in May 2003, as the new season began.
About the building
Easily accessible, the first storey houses various
services offered to the players (change rooms for
men and women, the pro shop, administration
offices, etc.). An 18.5 x 17.5 m (61 x 57 ft)
reception hall with a capacity for 160 people
occupies the majority of the second storey.
Seated within the hall or from the exterior
deck (Figure 22), visitors can admire the beauty
of Lac St-Jean and the golf course. The secondstorey also houses reception-related services
such as the bar, commercial kitchen, washrooms,
and storage. There is also a small office space
for tournament management.
C A S E S T U D I E S O F Outstanding Wood Buildings 1 7
St-Prime Golf Clubhouse
Reaching the Green with the Woods
5.
Figure 21Elevation views of the Clubhouse
Rear Elevation
Front Elevation
Right Elevation
Left Elevation
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Architectural Considerations
Wood is showcased throughout the two storey,
435 m2 (4,700 ft2) building, both structurally and
architecturally. The exposed structural roof frame,
combined with wood panelling and trim, wooden
staircase and doors, adds warmth and beautyto the interior. Outside, the 38 x 184 mm (nom.
2 x 8 in) bevel profile treated wood siding with its
natural texture, color and grain, adds beauty and
insulating value to the building. Aluminum roofing,
doors, windows, and handrails highlight the use
of wood.
Structural Wood System
The main structural support is provided by an
exposed glulam timber frame (Figure 23). The
timber frame supplies the required strengthwhile providing the essential character and
design aesthetics for the building interior.
Walls The post and beam frame provides the
structural support for roof load. The infill walls
are conventional light frame wood stud wall
assemblies. The use of wood-frame construction
offers functionality and versatility. The sheathing
materials used to provide rigidity also serve as the
building envelope to which exterior finishes are
attached. The space between the framing is used
for insulation, and the framing is used for affixing
vapour barrier and interior finish.
Floors The floor system combines the use
of glulam beams and open web joists. The large
open spaces provided by this assembly permitted
rapid installation of electrical and mechanical
services beneath the floor. The use of engineered
wood trusses eliminated on-site cutting and
reduced construction time. The high strength-to-
weight ratio of floor trusses permits long spans
offering flexibility in floor layouts by reducing the
need for interior loadbearing walls.
Roof The exposed glulam roof structure in the
reception hall, designed as an inverted pyramid,provides a clear span in the hall. The wooden roof
structure extends over an exterior deck where
it is supported by concrete columns. The use of
38 x 140 mm (2 x 6 in) tongue and groove timber
decking provides a warm and bright ceiling finish.
1 8 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 22Wide overhang
shelters the verandah
Figure 23Structural frame
during construction
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Innovative Products
The St. Prime Golf Clubhouse utilizes two innova-
tive products that are new to the marketplace:
Perduretreated wood is a product of European
origin that dries wood at high temperature,
between 180 and 230C (360 - 450F), com-
pared to temperatures of approximately 100C
for normal wood kiln drying. The Perdure product
was used for the wood siding exterior finish. The
process results in wood with a rich color that
can be used as a finished product and provides
a better resistance to insects and decay microor-
ganisms. The process is claimed to be more
environmentally friendly than chemically
treated wood.
Tectalroofing is an anodized aluminum roofing
system. The tiles and moldings are available
in a range of bronze and rainbow colors and
is claimed to be impervious to deterioration
by sunlight.
Fire Safety Requirements
The building is classified as an A-2 assembly
and the NBCC / QCC does not require sprinkler
protection for a building of this size and occu-
pancy. However, the floors and roof must have a
45-minute fire-resistance rating (FRR) for com-
bustible construction. These ratings were easily
achieved using gypsum board on the assemblies.
The glulam trusses and beams meet the minimum
size requirements for Heavy Timber, and can
therefore be left exposed with no additional fireprotection required in areas where the 45-minute
FRR is required.
Thermal Performance
As a typical Canadian clubhouse, the building was
designed for seasonal use. The building is only
heated to keep it above the freezing point during
the winter. The thermal performance of the build-
ing system was taken into consideration at the
design stage so that air conditioning would not be
required. Generous overhangs, good ventilation,
and adequate insulation levels easily attained
with wood-frame construction were the featuresused to keep the building comfortable during
the summer.
Conclusion
Combining post and beam and wood-frame
construction provides members and guests of
the St-Prime Golf Club with an attractive meeting
place overlooking the spectacular Lac St-Jean.
The use of wood products manufactured in the
area offered value, availability, speed of construc-
tion, appearance, wood construction, and anotheropportunity to show the flexibility and possibility
for Canadian wood products.
Project Credits
ARCHITECTS:
Boudreault Levasseur, architectes
STRUCTURAL ENGINEERS:
CIMA + Socit dingnierie
GLULAM FABRICATOR:
Lamell Qubec
GENERAL CONTRACTORS:
Consortium 2H 2000 (Construction P.A.R. Tanguay
et Construction Tanguay Bonneau)
PHOTO CREDITS:
Boudreault Levasseur, architectes
C A S E S T U D I E S O F Outstanding Wood Buildings 1 9
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In keeping with its fast-paced high-tech workenvironment, the Intuit Canada Headquartersand Call Centre was designed and constructed in
just eight months during the summer of 2000.
Located in southeast Edmonton, Alberta, this two
and a half storey, 8,600 m2 (95,000 ft2), state-
of-the-art office building (Figures 24 and 25)
houses 500 employees. In addition to offices,
there are numerous employee amenities includ-
ing a workout and fitness area, gymnasium, staff
lounge and commercial kitchen, informal meeting
rooms with big-screen televisions, pool tables,
and three sleep rooms for naps between day and
night shifts.
Wood construction, based on its availability
and ease of modification during construction,
was selected at the initial design stages in
order to meet the tight design and construc-tion schedule (Figure 26).
Intuit is a company that develops software for per-
sonal and business applications. As a result of its
commitment to an outstanding work environment,
Intuit has been rated one of the top ten places to
work in Canada for the past three years.
Architectural Considerations
Constructed on 3.5 ha (9 acres) along a section of
Edmontons Mill Creek Ravine, the building design
blends input from client-employee workshops withthe natural features of the site. Driven by econ-
omy and speed, yet shooting for quality, designers
constantly juggled materials and methods to
make the Intuit equation work.
Far from being a standard building, Intuits new
workspace fits its unconventional staff. Unusual
angles, curved walls, and architectural elements
(Figure 27) add to the playful appeal of the
building. The Intuit exterior also reflects the
firms dynamic personality. A walkout basement
capitalizes on the natural slope towardEdmontons Mill Creek Ravine. Five balconies
and two patios, featuring gas barbecues and
radiant heating, put all Intuit staff within a stroll
of the outdoors. The landscaping and the west-
facing patio create microclimate of sheltered
and sunny exterior spaces.
The Intuit building relies on large, operable,
energy-efficient windows to maximize daylight,
minimize energy and increase comfort, and shad-
ing devices control glare from natural light. The
tall windows allow daylight to bounce off ceilingsand decrease the need for electric illumination
of interiors.
2 0 C A S E S T U D I E S O F Outstanding Wood Buildings
Intuit Canada Headquarters
Fast-Tracked High-Tech Wood Construction
6.
Figure 24Artists rendering of
Intuit CanadaHeadquarters
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Structural Wood System
The entire project was framed in wood. In addition
to containing less embodied energy than steel, the
wood beams and joists injected speed and flexi-
bility into the construction process. With wood,
you can move that window around. If we had done
this as a steel building, those design changes
would have cost us, says designer Wes Sims,
of Manasc Isaac Architects.
Floors The elevated floor structures are com-
prised of glulam beams supporting dimensional
lumber or wood I-joists and a 19 mm (3/4 in)
tongue and groove OSB / plywood subfloor
(Figure 28). The typical joist span is 6 m (20 ft),
but the span in the Call Centre is 11 m (36 ft)
The subfloor is glued and screwed to the support-
ing joists and the floors are topped with 40 mm
(1-1/2 in) of lightweight concrete. In areas where
the structure is exposed from below, open web
joists and plank decking were specified.
In certain areas the floor is raised 450 mm(18 in) on a grid that allows easy access to a
cavity below. Underfloor mechanical and electrical
systems provide optimal energy efficiency and
user comfort, facilitate air movement by acting as
a plenum, and facilitate adjustment to alleviate
the change-out of user specific equipment
and systems.
Roof The roof framing mirrors the floor fram-
ing and alternate framing is used around the
feature stairs and support heavy roof mounted
mechanical equipment.
Columns Interior stand-alone columns are
152 x 152 mm (6 x 6 in) hollow steel sections.Lightly loaded columns within loadbearing wood
wall segments are constructed of built-up light
timber sections.
Walls/Lateral Stability The
38 x 140 mm (nom. 2 x 6 in) exterior walls are
wind-bearing, and provide lateral stability and
support for the exterior membranes, insulation
and masonry veneer or cladding. The floor and
roof elements are designed to act as diaphragms
to transfer the lateral loads to the exterior (or
shear) walls. The elevator shaft is comprised
of reinforced concrete to support the rails and
openings. The elevator shaft also carries a
share of the lateral building loads from wind
and seismic forces.
C A S E S T U D I E S O F Outstanding Wood Buildings 2 1
Figure 25Modern entry
and faade
Figure 26Wood structure
during construction
Figure 27Concrete-topped floors
and irregular room shapesprovide rigidity and interest
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Deflection for wood-frame walls acting as a back
up to full height masonry is restricted to 1/720 of
the unsupported height. The height of masonry
veneer is limited to 5 m (16 ft) from the founda-
tion to avoid the need for intermediate level
masonry ledgers.
Sustainable Design
Designed and modelled using DOE-2, the Intuit
building will consume 28% less energy thanrequired by the Model National Energy Code for
Buildings, resulting in savings of $65,000 per
year in operating costs and a significant reduction
in greenhouse gas emissions. Sustainable, well-
constructed buildings result in lower operating
and maintenance and can result in worker pro-
ductivity gains. The calculated payback for energy
saving systems for the Intuit building is two years.
Fire Safety Requirements
The Intuit building is considered quite large to be
of combustible construction and designers did
push the maximum allowable building area under
the Alberta Building Code. Given its size and
occupancy (Group D), a fire separation was pro-
vided between the Call Centre and the offices. In
addition, all floors are 1-hour rated. Ratings were
achieved with gypsum board attached to the
underside of the joists. Sprinklers were surface-mounted on the gypsum board surfaces.
Conclusion
Innovative products and project management
techniques produced a quality building that was
conceived and delivered in an eight-month time
frame. Wood-frame construction played an
important role in the speed of construction and
the moderation of construction costs. The Intuit
building is proof that a wood building can be
attractive, technologically advanced, energy
efficient, cost effective, comfortable, and safe.
Project Credits
ARCHITECTS:
Manasc Isaac Architects Ltd.
STRUCTURAL ENGINEERS:
Reid Crowther & Partners
MECHANICAL & ELECTRICAL ENGINEERS:
Keen Engineering
CIVIL ENGINEERS:
GPEC Engineering
GENERAL CONTRACTORS:
Clark Builders
PHOTO CREDITS:
Jim Dow
2 2 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 28The cafeteria exhibits the upscale
feel of this wood building
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T his new library is the first new communitybuilding to be constructed in downtownCourtenay in many years. The 1,200 m2
(12,900 ft2) single-storey building is strategi-
cally located at the southern edge of the
downtown retail district and serves to visually
invigorate the downtown streetscape. The
building features expanded book stacks, read-ing and study areas, a coffee lounge with
fireplace, a childrens area, a multi-purpose
room, and washrooms. The Courtenay Branch
was a joint project of the City of Courtenay
and the Vancouver Island Regional Library
the City owns the building and leases it to
the library.
Building with wood was especially appropriate
for downtown Courtenay because forestry is
one of the most important economic sectors of
the community. Wood both satisfied buildingcode requirements for structural integrity,
and offered economic and aesthetic advan-
tages. The new library serves as an example
and inspiration of how to combine the many tra-
ditional wood buildings with a modern design.
Architectural Considerations
To capture the threads of history in the look of
the new building, library planners borrowed ideas
from, and were inspired by, old photos of the
wood-built creamery and school that once neigh-
boured the site. The architect replicated some
of the features from earlier times such as roof
shapes, materials, and extensive use of wood tofit with the heritage of Courtenay (Figure 29).
The new library is two and a half times larger
than the previous building, and has room on the
property to expand to 1,600 m2 (17,000 ft2). The
cost of the building was $1.85 million, and the
overall project cost, including sitework and
parking, was $2.5 million.
The simple building form provides a unique
focal point in the downtown area and a central
gathering space representative of the community
it serves.
Structural Wood System
Wood is used throughout the library to create a
heritage ambiance. The new building features
exposed heavy timbers and trusses, wood-framed
windows, and a wood-shingled exterior. Walking
though the doors, the double storey entrance fea-
tures heavy timber open trusses arched overhead,
allowing light to spill in through the skylights
(Figure 30).
Walls Wherever possible, exterior 38 x140 mm (2 x 6 in) light-frame wall construction
was used rather than hierarchal beam and column
construction. Light-frame construction is a
building technique that works well for residential
construction and can be adapted to provide
economical rigid construction for commercial
projects when properly engineered. With this
C A S E S T U D I E S O F Outstanding Wood Buildings 2 3
Vancouver Island Regional
Library, Courtenay BranchCapturing the Threads ofHistory With Wood7.
Figure 29Front elevation showing
varied roof lines
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technique, the same building elements are used
to enclose, as well as to provide structural support
for gravity loads and lateral loads.
Roof The building has two peaked roofs flank-
ing flat roofs (Figure 31). This forms a collection
of smaller shapes that mirror the neighbouring
streetscape, creating a vintage ambiance. The
use of an engineered roof truss system for the
peaked roofs provides a more open look with
fewer columns.The flat roof is comprised of a flat roof truss sys-
tem that employs glulam beams and steel tension
rods. Gypsum board ceiling is used in these areas
so that electrical, mechanical and HVAC system
running through these open-web trusses do
not detract from the visual appeal of the
buildings interior.
Fire Safety Requirement
The library building is sprinkler-protected.
Although not a requirement relative to its size andoccupancy (Group A-2), adding sprinklers to the
design allowed added flexibility in the structural
and architectural use of various materials within
the building. As such, the entire building was
permitted to be of wood-frame construction or
any other building system without special fire
performance characteristics.
Acoustic Design
Acoustic separation is of utmost importance for
a library where reading rooms, private offices
and multi-purpose rooms are in close proximity.
Although basic acoustic requirements were
incorporated in the design, increased sound
control was achieved by sheathing the walls
with gypsum board and adding batt insulation
for noise attenuation.
Conclusion
The new Courtenay Branch Library echoes the
citys past, and the use of wood reinforces the
future for Courtenay. This excellent example
of modern wood construction compliments the
historic fabric of the city and provides a large,
welcoming library facility.
Project Credits
ARCHITECTS:
Merrick Architecture
STRUCTURAL ENGINEERS:
Peterson Galloway Ltd.
GENERAL CONTRACTORS:
Perma Construction Ltd.
PHOTO CREDITS:
Danny Signer
2 4 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 30Bright, open roof structure
in the main entry
Figure 31Dusk view of the front
of the library
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Replacing two existing hospitals in ThunderBay Ontario, the new Thunder Bay RegionalHealth Sciences Centre represents a significant
advance in the provision of quality health care.
Completed in January 2004 after 3 1/2 years
of construction, the 60,000 m2 (640,000 ft2),
375-bed acute care facility (Figure 32) is the
first hospital in Canada to use wood extensively
throughout the structure of the main public
areas. In doing so, it provides a bright and opti-
mistic atmosphere for patients, staff, and the
community it serves.
Architectural Considerations
Located on a 25 ha (60 acres) site opposite
Lakehead University, this main health centre
serving northwestern Ontario includes acute
care services, a regional cancer centre, maternal
childcare services, and a forensic mental health
centre. The three-storey hospital complex is built
in a flexible T-style grid consisting of the curvedcorridor which links two parallel side-by-side main
hospital blocks with a much smaller north-facing
third block.
The 18,600 m2 (200,000 ft2) main public
corridor, built entirely with heavy timber frames,
celebrates the vernacular of the region by drawing
on its historic and continuing ties to the forest
industry. The gently curving wooden arcade
(Figure 33) follows the path of the sun to provide
natural light penetration throughout the day for
patients, staff and visitors, and access to theoutside healing garden.
C A S E S T U D I E S O F Outstanding Wood Buildings 2 5
Thunder Bay Regional Health
Sciences CentreHarvesting the Benefits of WoodUse in Health Care8.
Figure 32Artists rendering of
the new hospital
Figure 33Glulam structure provides
a bright, roomy atmospherefor the main public corridor
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Structural Wood System
Wood was used as the main structural element
of the public areas for its warmth and non-
institutional character, but also as a structural
feature. Glulam was used extensively in various
structural applications, including the main public
corridor structure, the emergency entrance, the
entrance and drop-off canopies, and in the
Cancer Treatment Centre.
Main Public Corridor The 7.5 m (25 ft)
wide by 140 m (460 ft) long public corridor is
made of Douglas fir glue-laminated members
(Figure 34). The 300 mm (12 in) diameter interior
columns are spaced at 9 m (30 ft) and support
inverted wood trusses. All members are connected
(Figure 35) using either wood blocking or
concealed galvanized connector plates.
Entrance, Emergency and Drop-off
Canopies The canopies around the main
building are a combination of wood, steel, and
masonry structure (Figure 36). Glulam members
span the roadway to provide shade and accent
the entrances.
Cancer Treatment Centre The roof of
the cancer treatment area corridor is supported by
three glulam support clusters (Figure 37) spaced
9 m (30 ft) apart. All connections employ
concealed galvanized steel plates.
Fire Safety Requirements
The Thunder Bay Regional Health Sciences Centre
is the first hospital in Canada to gain approval for
the use of wood as a primary structural element.
Under the guidance of code consultants, the
design team incorporated safeguards that demon-strated to the Ontario Fire Marshals office and
municipal building officials, the ability of the wood
structure to meet code requirements for perform-
ance. For example, the wood-intensive pedestrian
corridor is separated from the rest of the hospital
by a two-hour-fire-rated masonry separation and
fire doors. The design also includes compart-
mentalization, creating isolated clusters of rooms,
thus minimizing any potential fire spread. Other
safeguards included the placement of two
sprinkler heads at each wooden member thatspan the corridor, as well as two sprinklers at
each column. In addition, special fire-retardant
coatings are used on the wood columns in the
main public corridor to reduce the flame-spread
rating of the wooden structural elements.
2 6 C A S E S T U D I E S O F Outstanding Wood Buildings
Figure 34Detail of the glulam rooftrusses and struts
Figure 35Timber connectorsand tie rods
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Design and Construction Process
The Thunder Bay Regional Health Sciences Centre
is not only the first Canadian hospital to use wood
extensively in construction, but also the first hos-
pital complex in Ontario to be delivered using the
construction management process, completing
the project in 3 1/2 years versus 8 years, as is
typically the case for this building type. Using this
method, efficiencies of design and construction
could be implemented. For example, the building
was designed so that the steel frame areas of
the hospital could be erected first, with the wood
structure added later over a period of three
months. The program was fast-tracked under
a unique partnership between the owner,
architects, and builders. This form of project
delivery has enabled the Thunder Bay Regional
Health Sciences Centre to build a health centre in
record time while still maximizing user input and
involvement in creating the design solution.
Cost Considerations
Initially there was some reluctance to the pro-
posed use of wood as the main structural element
in the public corridor. However, preliminary pricing
by the construction managers showed that the
wood structure, including fire suppression, would
be slightly less expensive than a steel solution,
and in addition, offered far more qualitative value.
Conclusion
From the outset, the architects were challenged
by the owners to design a facility that responded
to the indigenous cultural and natural features
synonymous with Thunder Bay. As a result, wood
was selected as the material of choice for the
structure of the main public areas of the hospital
and Cancer Centre. Intended to evoke optimism
and cheerfulness, the wood structure successfully
greets and warms these public areas.
Project Credits
ARCHITECTS:
Salter Farrow Pilon Architects Inc.
STRUCTURAL ENGINEERS:
Mikelson Cook Engineering
CONSTRUCTION MANAGERS:
EllisDon Limited / Tom Jones Corporation
PHOTO CREDITS:
Farrow Partnership Architects Inc.
C A S E S T U D I E S O F Outstanding Wood Buildings 2 7
Figure 36
Glulam entrance canopy
Figure 37
Glulam support structuresin the cancer treatment centre
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Wood WORKS! is a national initiative of the Canadian Wood Council supported by the organizations
listed below. It operates in regions throughout Canada to encourage design and construction profes-
sionals, governments, and the general public to showcase to the world the innovative use of wood andwood products in their regions.
Wood WORKS!Project Partners:
Wood WORKS!/ Branch sur le bois
Canadian Wood Council / Conseil canadien du bois
99 rue Bank Street, Suite / bureau 400Ottawa, Ontario K1P 6B9
Tel / Tl : 1-800-463-5091Fax / Tlc : (613) 747-6264
Printers: Performance Printing
Ottawa, ON